I don't want to bring the discussion off topic, but I find that hard to believe. Some good electronic artists that I enjoy are Aphex Twin, Boards of Canada, Burial, and The Avalanches. I agree that there is a lot of crappy electronic music on the internet but I think that's true of any genre. Why do you think its the lowest tier?
I'd say the Avalanches is mostly hip hop. Aphex Twin, Boards of Canada, I don't think they are any good or different that the other hundreds of artists in those genres.
Also, like a certain other genre (which I won't name in order to avoid more down-votes from offended fans), it has a habit of being mixed into other genres like a low quality spirit mixer...